20839984155

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{19051}}^1$

素因数の和:19178

約数の個数: 80

約数和(自身を含む): 38894886624

約数和(自身を除く): 18054902469

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 73, 81, 111, 135, 185, 219, 333, 365, 405, 555, 657, 999, 1095, 1665, 1971, 2701, 2997, 3285, 4995, 5913, 8103, 9855, 13505, 14985, 19051, 24309, 29565, 40515, 57153, 72927, 95255, 121545, 171459, 218781, 285765, 364635, 514377, 704887, 857295, 1093905, 1390723, 1543131, 2114661, 2571885, 3524435, 4172169, 6343983, 6953615, 7715655, 10573305, 12516507, 19031949, 20860845, 31719915, 37549521, 51456751, 57095847, 62582535, 95159745, 112648563, 154370253, 187747605, 257283755, 285479235, 463110759, 563242815, 771851265, 1389332277, 2315553795, 4167996831, 6946661385, 20839984155]

約数ペア:

[(1, 20839984155), (3, 6946661385), (5, 4167996831), (9, 2315553795), (15, 1389332277), (27, 771851265), (37, 563242815), (45, 463110759), (73, 285479235), (81, 257283755), (111, 187747605), (135, 154370253), (185, 112648563), (219, 95159745), (333, 62582535), (365, 57095847), (405, 51456751), (555, 37549521), (657, 31719915), (999, 20860845), (1095, 19031949), (1665, 12516507), (1971, 10573305), (2701, 7715655), (2997, 6953615), (3285, 6343983), (4995, 4172169), (5913, 3524435), (8103, 2571885), (9855, 2114661), (13505, 1543131), (14985, 1390723), (19051, 1093905), (24309, 857295), (29565, 704887), (40515, 514377), (57153, 364635), (72927, 285765), (95255, 218781), (121545, 171459)]